Network Spoofer lets you change websites on other people’s computers from an Android phone.

Disclaimer:
Please note that there is no intention for Network Spoofer to include any malicious features. This application is a fun demonstration of how vulnerable home networks are to simple attacks, with permission of the network owner – DO NOT attempt to use Network Spoofer on any corporate or other non-residential networks (eg. at school, university). It becomes very obvious when Network Spoofer is being used on a Network, and use of Network Spoofer will be considered malicious hacking by network administrators.

Requirements
Network Spoofer runs on Android devices with the following requirements:
– Which are rooted (‘su’).
– Which has Wifi
The first can be obtained by using a custom firmware such as CyanogenMod. Alternatively search on the internet for instructions on how to root your phone.